Removing Hurricane Debris from Florida’s Coral Reefs

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7 Dec 2018 8:36 AM
[Lobster traps and mangrove branches dislodged by Hurricane Irma, ending up on top of Conch Reef in the Florida Keys National Marine Sanctuary. Credit: Steve Gittings/ NOAA] [NOAA] Marine debris is an everyday issue, but hurricanes can make the problem much worse. High winds, torrential rains, and storm surges can all loosen debris and send it towards the ocean. Hurricanes often occur in the same tropical waters as coral reefs. After strong storms, tons of debris, including parts of houses, piers, and whole boats, can end up damaging these unique ecosystems. The Marine Debris Program (MDP), works with partners to remove debris that is threatening, or has already damaged, Florida coral reefs. [A NOAA navigation response team from New London, CT, surveys the Port of Morehead City, NC, after Hurricane Florence. From NOAA on September 19.]

Ideally, to protect coral reefs, we want to remove existing debris before it has a chance to cause damage. The Florida Department of Environmental Protection is working with the MDP to remove several tons of construction debris from man-made islands located in the Biscayne Bay Aquatic Preserve. Although this debris is not on a reef, it continually re-floats and may damage nearby habitats, including corals. Some of the materials being removed, such as metal, plastic, and pressure treated wood, do not break down rapidly and tend to accumulate on nearby reefs.

There is also debris that needs to be removed from the reefs themselves. The Florida Fish and Wildlife Conservation Commission, with support from the MDP, will remove derelict lobster and crab traps and over 200 derelict vessels in areas impacted by Hurricane Irma. Much of this debris removal will take place in or near coral reefs within the Florida reef tract in Southeast Florida and the Florida Keys National Marine Sanctuary.

[Vessels like this one can impact and damage the structure of a reef. Credit: Florida Fish and Wildlife Conservation Commission.]

The Florida Fish and Wildlife Conservation Commission is also working with the MDP to collect data on how debris collects and moves around Florida waters. If we know where debris is likely to collect, it will helps us identify and remove it more quickly after the next storm. We will be able to more precisely target what debris to focus on first, and hopefully save more corals.

Hurricanes cause so much destruction to human habitats on land that we often forget about the destruction they cause to habitats in the ocean. We are proud to do our part to help these amazing ecosystems recover.

Edited for WeatherNation by Meteorologist Mace Michaels

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